The linear regression is similar to multiple regression. But, there are difference between them. We'd perform the task that together, in a step-by-step format. But, first you'd need to get the Data Analysis by following through these steps: file > options > add-ins> go > data analysis > ok. Further, you'd also needs a data that look like this:

1. Click on Data (1), and then press on the Data Analysis (2).

2. Click on the regression.

3. Select the cells for y-values (1), then the ones for x-values (2), and then check the labels (3). Finally, press ok (4).